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33 • Serbia 385
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A B
Fig. 33.10 (A) Significant stenosis after open repair of injured popliteal artery (arrow). (B) Control angiography after stenting.
tolerance to hemorrhagic shock in comparison with adults. Due to this, pediatric vascular injury requires more aggressive and earlier intervention.
Several factors unique to children should be considered during vessel repair. Firstly, the dimensions of the injured vessels make surgical correction more complex and increase the complication rate. Secondly, circumferential running suture causes a “purse stringing” effect with further arte­rial growth. For this reason, interrupted suture repair that allows for vessel development is recommended. Also, during repair of injured vessels in children, surgeons should think about the signicant risks of growth and development com­plications including limb-length disparities, claudication, and decreased perfusion. There are signicant limitations concerning the use of synthetic conduits or allografts due to long-term patency concerns. On the other hand, vein graft dilatation should be expected over time (Fig. 33.11). This is why some authors suggest reinforcement of the vein graft with synthetic mesh. Neointimal hyperplasia is poten­tially more frequent because of the longer time available for this to develop in children compared with adults. From our perspective, it seems reasonable to use endovascular tech­niques – at least as a bridge – in children with multiple asso­ciated injuries.
Lesson 13: Long-Term Complications After Repair of Vascular Trauma
Two of the long-term complications following the open repair of injured arteries are true vein graft aneurysms and steno­sis (due to neointimal hyperplasia). Endovascular repairs of injured arteries can be complicated by early thrombosis and distal embolism. The long-term results following endovascu­lar repair of vascular trauma are unknown. Endograft migra­tion, fracture, and stenosis caused by neointimal hyperplasia are potential complications.
Conclusion
Endovascular repair has an important role in the treatment of vascular trauma (e.g., blunt trauma of the descending thoracic aorta and the intrathoracic segment of supraaor­tic brunches; hemostasis from surgically unapproachable mid-to-small arteries; or failure after open repair). How­ever, in the majority of cases, open surgery is the method of choice.
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B
Fig. 33.11 (A and B) Saphenous vein graft aneurysm developed 12 years after repair of an injured popliteal artery during childhood.
References
1. Soubbotich V. Military experiences of traumatic aneurysms. Lancet.
1913;2:720–721.
2. DeBakey ME, Simeone FA. Battle injures of the arteries in the World
War II. Ann Surg. 1946;123:534–579.
3. Rich N, Clagett P, Salander JM, Piščević S. The Matas/Soubbotich con-
nection. Surgery. 1983;93:17–19.
4. Davidovic L, Cinara I, Ille T, Kostic DM, Dragas MV, Markovic DM. Civil
and war peripheral arterial trauma: review of risk factors associated with limb loss. Vascular. 2005;13:141–147.
5. Fingerhut A, Lappaniemi A, Androulakis G, etal. The European expe-
rience with vascular injuries. Surg Clin North Am. 2002;82:175–188.
6. MacKenzie EJ, Bosse MJ, Kellam JF, etal. Factors inuencing the deci-
sion to amputate or reconstruct after high-energy lower extremity trauma. J Trauma. 2002;52:641–649.
7. Dragas M, Davidovic L, Kostic D, et al. Upper extremity arterial
injuries: factors inuencing treatment outcome. Injury. 2008;40: 815–819.
8. Davidovic LB, Banzic I, Rich N, Dragaš M, Cvetkovic SD, Dimic A. False
traumatic aneurysms and arteriovenous stulas: retrospective analy­sis. World J Surg. 2011;35:1378–1386.
9. Feliciano DV, Herskowitz K, O’Gorman RB, etal. Management of vas-
cular injuries in the lower extremities. J Trauma. 1988;28:319.
10. Velinovic M, Davidovic L, Lotina S, et al. Complications of opera-
tive treatment of injuries of peripheral arteries. Cardiovasc Surg. 2000;8:256–264.
11. Davidovic L, Lotina S, Kostic D, etal. Popliteal artery war injuries. Car-
diovasc Surg. 1997;5:37–41.
12. Marković M, Davidović L, Kuzmanović I, Dragas M, Ilić N. Giant post-
traumatic pseudoaneurysm of the peroneal artery with arteriove­nous stula and bular notch. Am Surg. 2009;75:627–629.
13. Mubarak SJ, Hargens AR. Acute compartment syndromes. Surg Clin
North Am. 1983;63:539–565.
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15. Riambau V, Böckler D, Brunkwall J, etal. Management of descend-
ing thoracic aorta diseases. Eur J Vasc Endovasc Surg. 2017;53: 4–52.
16. Sladojevic M, Markovic M, Ilic N, et al. Open treatment of blunt
trauma of supra-aortic brunches. Case series. Ann Vasc Surg. 2016;31: 205–210.
17. du Toit DF, Strauss DC, Blaszczyk M, de Villiers R, Warren BL. Endo-
vascular treatment of penetrating thoracic outlet arterial injuries. Eur J Vasc Endovasc Surg. 2000;19:489–495.
18. Shalhub S, Starnes WB, Tran NT. Endovascular treatment of axil-
losubclavian arterial transection in patients with blunt traumatic injury. J Vasc Surg. 2011;53:1141–1144.
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Israel
EITAN HELDENBERG and ELON GLASSBERG
Israeli hospitals, as part of the national health system, offer advanced medical care, which includes vascular surgery.
As in other developed countries, endovascular treatment of peripheral arterial occlusive disease is replacing the “old“ surgical approach. For example, endovascular treatment of aortic aneurysms, both simple and complicated, has become the preferred mode of treatment. Enjoying one of the highest life expectancies in the world, the demand for vascular procedures among the Israeli population is on the rise.1 To meet these demands, specialized vascular units provide 24/7 immediate vascular treatment in every public hospital in Israel, including trauma victims.
The principal characteristics of vascular trauma surgery in Israel resemble those of other Western countries, with both penetrating and blunt mechanisms as causes of vas­cular injuries. The rate of iatrogenic vascular injuries has increased over the last decades, with the spread of mini­mally invasive techniques within specialties such as cardi­ology, vascular and general surgery.
Located in the Middle East (Fig. 34.1) and having had to ght for its existence since its establishment in 1948, Israel has a history of military conicts. Those military con­icts, although uncommon, involved high intensity clashes between the armies of the surrounding Arab states and the Israeli Defense Forces (IDF). The experience from these con­icts has been widely reported (both in the eld of general trauma, as well as vascular trauma).3 Unfortunately, over the years Israel has also been confronted with terrorist­related attacks and maintains, generally speaking, a high state readiness (Fig. 34.2).
Most Israeli physicians are recruited to the IDF during times of need as reservists. Practicing in civilian hospi­tals (the IDF does not operate hospitals, but relies on the national health system), these physicians receive addi­tional annual military-specic and trauma-related train­ing by the IDF. Thus, the IDF’s surgeons (during times of full-scale conict) are mostly drafted civilians. It is also worth mentioning that the IDF provides Advance Trauma Life Support (ATLS) training to almost every resident in Israel, regardless of whether they are in the reserves. These intimate collaborations between the Israeli civilian and military medical services allow for the rapid adapta­tion of combat-related military medical professional les­sons in the civilian arena.
Data from past IDF conicts demonstrated vascular injury rates that resemble those reported by the US mili­tary in Afghanistan. forward IDF teams and evacuated to the civilian trauma centers. Rapid evacuation of the injured victims from the scene to the nearest hospital is the most important factor in those victims’ prognosis. The severely wounded were
4–6
The casualties were treated by
2
mostly airlifted,preferably by the Israeli Air Force (IAF) combat rescue and evacuation unit (669), manned by senior physicians (Fig. 34.3).
Since the early 1990s, a worldwide epidemic of ter­rorist attacks against civilians has been raging. Aimed at creating large numbers of victims, inducing fear, and causing chaos among nations, most attacks are conducted using improvised explosive devices (IEDs) as shown in
Fig. 34.4.
Unfortunately, the literature regarding terror-related trauma is anecdotal, with a large portion originating from Israel and related to the experience gained from treating the casualties of suicide bombings. In the early years of the 21st century, ers targeting buses, semi-conned spaces (restaurants, cafés, night clubs, etc.) and open spaces (outdoor cafés, bus stops, and open markets) as shown in Fig. 34.5.
Unlike the “classic” civilian-related trauma, IED explo­sions present civilian trauma and vascular surgeons with military (combat) type injuries. Heldenberg et al. described the Israeli experience with terror-related vascular trauma (TVT) in two studies. related vascular trauma (NVT), a signicant difference was found in the prevalence of vascular injuries (9.85% in TVT casualties versus 1.1% in NVT, P < .01).14 Moreover, the prevalence of severely injured patients (injury severity score [ISS] 25+) was 3.3 times higher among TVT victims as compared to NVT victims (51.4% and 15.5%, respectively), probably reecting the massive tissue damage caused by IEDs.16 This higher ISS is also testament to the importance of expeditious evacuation of patients who otherwise would not have survived. As most of the explosions took place in the center of large cities, the proximity to level 1 trauma centers and the availability of experienced vascular sur­geons probably played a crucial role in their survival.
In addition to the classic manifestations of blunt, penetrat­ing, and burn injuries, victims of explosion may also suffer blast injuries. Projectiles, such as steel balls, nails, screws, and nuts packed around an explosive substance, were also frequently used by terrorists in Israel and caused devastating penetrating injuries and increased mortality.
The severity of the injuries caused by explosions relates to the proximity of the casualty to the explosion. The kinetic energy of shrapnel is maximal closer to the center of the explosion, thus increasing the risk of vascular injuries for individuals in this zone. Peleg has shown that the pat­tern of civilian injuries in terrorist attacks is different from those of military injuries, probably due to the difference in the setting, evacuation times, and the lack of protective gear worn by civilians. In general, civilians were found to be more vulnerable to terrorist-induced injuries and suffered higher mortality rates.
7–14
Israel experienced a wave of suicide bomb-
14
15,16
In comparison with non–terror-
7,9,13,14,16–18
22
16
19–21
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A
Fig. 34.1 Israel and neighboring countries.
Fig. 34.2 The ruins of a bus blown up by a suicide bomber in the mid-
dle of Tel Aviv, October 19, 1994.
B
Fig. 34.3 (A and B) Wounded civilian evacuated by the Israel Air Force special combat rescue and evacuation unit—unit 669.
Fig. 34.4 Improvised explosive device.
The Israeli experience with TVT, such as with civilians injured by IEDs, demonstrates the importance of a thorough examination to exclude vascular injuries as part of the initial assessment in terrorist attacks. In a multicasualty incident, when decisions are typically based on clinical judgment, tri­age ofcers should consider the high probability of vascular injury and maintain a high index of suspicion.
The high prevalence of vascular injuries among casual­ties from terrorist attacks, particularly civilian IED victims, further demonstrates the importance of establishing and maintaining a national vascular surgery–trauma system that is ever-ready. Unfortunately, as bombings affect more and more cities around the world, the lessons learned in Israel since the 2000s are ever more relevant.
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Fig. 34.5 The Maxim restaurant explosion by a suicide bomber in Haifa, October 4, 2003.
References
1. Life expectancy and healthy life expectancy—data by country. The World Health Organization. http://apps.who.int/gho/data/node.main.
688?lang=en. Retrieved 8 August 2020.
2. Martin JM, Long BW. Vascular trauma: epidemiology and natural his­tory. In: Rutherford’s Vascular Surgery. 8th ed. Philadelphia, PA: Else- vier Saunders; 2422–2426.
3. Rich NM. Historical and military aspects of vascular trauma (with
lifetime reections of Doctor Norman Rich). In: Rich NM, Mattox KL, Hirshberg A, eds. Vascular Trauma. 2nd ed. Philadelphia: Elsevier Saunders; 2004:3–7.
4. White JM, Stannard A, Burkhardt GE, Eastridge BJ, Blackbourne LH,
Rasmussen TE. The epidemiology of vascular injury in the wars in Iraq and Afghanistan. Ann Surg. 2011;253:1184–1189.
5. Nigel T, Rasmussen T. Epidemiology of vascular injury. In: Rasmussen
T, Nigel T, eds. Rich’s Vascular Trauma. 3rd ed. Philadelphia: Elsevier Saunders; 2015:13–20.
6. Nitecki SS, Karram T, Ofer A, Engel A, Hoffman A. Vascular injuries
in an urban combat setting: experience from the 2006 Lebanon War. Vascular. 2010;18:1–8.
7. Mayo A, Kluger Y. Terrorist bombing. World J Emerg Surg. 2006;1:33.
https://doi.org/10.1186/1749-7922-1-33.
8. Kluger Y, Mayo A, Soffer D, Aladgem D, Halperin P. Functions and
principles in the management of bombing mass casualty incidents: lessons learned at the Tel-Aviv Sourasky Medical Center. Eur J Emerg Med. 2004;11:329–334.
9. Kluger Y, Peleg K, Daniel-Aharonson L, Mayo A, Israeli Trauma
Group. The special injury pattern in terrorist bombing. J Am Coll Surg. 2004;199:875–879.
10. Almogy G, Belzberg H, Pikarsky AK, Zamir G, Rivkind AI. Suicide
bombing attacks: update and modication to the protocol. Ann Surg. 2004;239:295–303.
11. Kluger Y, Mayo A, Hiss J, et al. Medical consequences of terrorist
bombs containing spherical metal pellets: analysis of a suicide terror­ism event. Eur J Emerg Med. 2005;12:19–23.
12. Alci R, Ashkenazi I, Kessel B. Management of victims in a mass casu-
alty incident caused by a terrorist bombing: treatment algorithms for stable, unstable, and in extremis victims. Mil Med. 2006;171: 1155–1162.
13. Aschkenazy-Steuer G, Shamir M, Rivkind A, etal. Clinical review: the
Israeli experience: conventional terrorism and critical care. Crit Care. 2005;9:490–499.
14. Almogy G, Mintz Y, Zamir G, etal. Suicide bombing attacks. Can exter-
nal signs predict internal injuries? Ann Surg. 2006;243:541–546.
15. Heldenberg E, Givon A, Simon D, Bass A, Almogy G, Peleg K. Terror attacks increase the risk of vascular injuries. J Front Public Health. 2014;2(47). https://doi.org/10.3389/fpubh.2014.00047.
16. Heldenberg E, Givon A, Simon D, etal. Civilian casualties of terror-
related explosions: the impact of vascular trauma on treatment and prognosis. J Trauma Acute Care Surg. 2016;81:435–440.
17. Peleg K, Aharonson-Daniel L, Stein M, etal. Gunshot and explosion
injuries: characteristics, outcomes, and implications for care of ter­ror-related injuries in Israel. Ann Surg. 2004;239:311–318.
18. Ministry of Foreign Affairs. The nature and extent of Palestinian ter­rorism. Israel Ministry of Foreign Affairs, 2006. https://mfa.gov.il/
MFA/ForeignPolicy/Terrorism/Palestinian/Pages/Palestinian%20 terrorism%202006.aspx Accessed August 1, 2020.
19. Champion HR, Holcomb JB, Young LA. Injuries from explosions:
physics, biophysics, pathology, and required research focus. J Trauma. 2009;66:1468–1477.
20. Ramasamy A, Hill AM, Clasper JC. Improvised explosive devices:
pathophysiology, injury proles and current medical management. J R Army Med Corps. 2009;155:265–272.
21. Kluger Y. Bomb explosions in acts of terrorism—detonation, wound
ballistics, triage and medical concern. Isr Med Assoc J. 2003;5: 235–240.
22. Peleg K, Jaffe DH, Israel Trauma Group. Are injuries from terror and
war similar? A comparison study of civilians and soldiers. Ann Surg. 2010;252:363–369.
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South Africa
KENNETH BOFFARD
Region-Specific Epidemiology
South Africa is a large country (1,200,000 km2), with a population of about 60 million, of whom half live in the urban environment and half live in the rural environment. There is inevitably a wide difference in the availability of general and specialized medical care as a result.
For many years, South Africa has had a background of violence. Some of this can be attributed to the political and other difculties of the Apartheid era, but a signicant proportion is of criminal and intercommunity origin. The trauma registry at Johannesburg hospital, which has been in existence since 1984, reects that in 1984 of the 1000 major trauma resuscitations per annum (injury severity score [ISS] greater than 15), some 300 injuries were pen­etrating in nature. In the 1980s these were predominantly due to stab wounds and usually associated with alcohol.
Around the time of the advent of full democracy in 1994, there was initially an upsurge in interpersonal violence, partly due to the relatively free availability of rearms and partly due to some initial instability in the political system before the democratic elections. At that time, not only was there an upsurge in the number of gunshot wounds but a higher prevalence of wounds from high-energy assault­rie (AK-47) ammunition was found in both rural and urban environments. By 1994, of the 2000 resuscitations at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH), 1000 were penetrating, and by 1999, there were 2500 resuscitations of which 2000 were penetrating, the majority of which were gunshots. At the two major univer­sity teaching hospitals in Johannesburg (Chris Hani Barag­wanath Academic Hospital [CHBAH] in Soweto and CMJAH in central Johannesburg [Fig. 35.1]), the incidence of pen­etrating trauma was approximately 85% of all trauma vic­tims. Of these, 70% were secondary to gunshot injuries. Most of the remaining injuries were due to stabbing.
Since 1994, government focus has been on bringing primary health care to poorer people, especially in rural areas. The money has had to come from somewhere, and, despite dramatic increases in total budget, famous urban hospitals like CHBAH, and Groote Schuur in Cape Town fell into neglect while hundreds and thousands of rural dwell­ers received some medical attention, many for the rst time in their lives. The distances to major facilities are, however, unchanged, and air transport is limited.
Since 2009 (apart from drug and gang related violence), there has been a decline in the homicide rate across the country. Stringent rearm laws including a background check and a practical certicate of competency prior to licensing, as well as a mandatory jail sentence for posses­sion of an unlicensed rearm, have seen a signicant reduc­tion in the use of rearms. There has been a slight increase in the number of stabbings, but overall, particularly in the
Johannesburg area, both the homicide rate and the inci­dence of penetrating injury has dropped, in some cases by up to 70%. In 2011, the same trauma registry showed 2200 cases overall, of which 900 were penetrating. In the Univer­sity’s private Milpark Academic Trauma Centre, out of 1200 cases per year, the percentage of gunshots has dropped from 60% to less than 10%, and penetrating injury to less than 25% overall. The incidence of gunshot injuries in the Cape Town and Durban areas has not shown such a dramatic fall­off, but this may be partly due to increased use of rearms secondary to an increased gang culture and drug culture. It is now rare to see any high-energy rie injuries.
A substantial number of vascular injuries seen in the South African context present late, with other compet­ing injuries, and patients are in hypovolemic shock. The patients’ outcome may also be compromised by the high prevalence of HIV.
The common mechanisms of injury in blunt trauma are similar to other countries and are related to long bone frac­tures, direct blows to the neck, and compression injuries. Many are industrial related. South Africa has a very high incidence of pedestrian injuries from motor vehicles, with associated pelvic, femoral, and lower limb fractures, many of which are associated with vascular injury as well.
Other injuries seen include strangulation, animal bites (a different form of penetrating injury, Fig. 35.2), ejection from motor vehicles, and an association between high cervi­cal fractures and fractures involving the foramen transver­sarium, associated with blunt internal carotid artery injury.
In penetrating trauma, currently 50% of vascular inju­ries are gunshot-wound related and are particularly com­mon in the neck and torso, with transmediastinal injury, transabdominal injury, and injury to the femoral vessels. The bulk of stab wounds causing vascular injury are to be found in the neck, particularly zone I and zone II (in asso­ciation with aerodigestive injuries, Fig. 35.3)
A relatively large number of patients with stab wounds to the heart survive to reach the hospital and our experience, like similar series from elsewhere, has been that, if they sur­vive to reach hospital alive, they are likely to leave the hos­pital alive. A separately described subset of injury is that of patients presenting with a repeat stab heart!
Finally, South Africa has a signicant gold and coal min­ing industry. The deepest mines are found about 50 miles (80 kilometers) to the west of Johannesburg in the West Wits Goldeld (Tau Tona and Mponeng mine). Active min­ing takes place at up to 5000 m/17,000 feet (about 3 miles) below ground level. At this depth, the uncooled tempera­ture of the rock can reach 67°C/150°F and the air pressure can reach more than twice that at sea level. Rock movement is common. The mining industry has an excellent safety record, but the challenges of the injuries caused include rock falls causing crush and compartment syndromes, often
1–4
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Fig. 35.1 Emergency Medical Services (EMS) helicopter flying past Charlotte Maxeke Johannesburg Academic Hospital and metropolitan Johannesburg.
Fig. 35.3 Penetrating injury to zone 1 of the chest. Knife still in place.
complicated by the long periods (up to 2 hours) required to reach the surface.
Reliable follow-up is often difcult in South Africa and treating minimal injury conservatively (nonoperatively) is not always either feasible or possible. There is an associated shortage of high-care beds, so many injuries that would no longer be operated on elsewhere are dealt with surgically, including with the use of endovascular techniques. Long­term follow-up is difcult in institutions in South Africa, particularly after trauma, mainly because of socioeco­nomic factors. It is expected that only approximately one­third of patients will return to clinic visits within 2 months of discharge.
Fig. 35.2 (A) Hippopotamus bite to the left side of the neck, with dam­age to the carotid and jugular vessels. (B) Same patient showing lacera­tion of the shoulder, and crush injury to the back.
Region-Specific Systems of Care
There is approximately 1 physician for 25,000 patients in the rural areas, and 1 physician per 700 patients in the urban areas of South Africa. There are approximately 50 registered subspecialist vascular surgeons and 35 regis­tered subspecialist trauma surgeons for the country, almost all concentrated in the urban areas, and most in Academic centers.5 There are some 800 practicing general surgeons nationwide, mostly in the major centers, and it is they who bear the brunt of the vascular trauma load.
Currently there are eight medical schools in South Africa, producing 2000 graduates per annum. Unfortunately, 700 doctors leave the country each year primarily to Canada and Australia, many of whom have already trained as spe­cialists, including surgery. Thus, there is a signicant short­fall of medical practitioners in general, and of surgeons, in particular. Although qualied general surgeons provide the full range of trauma care in most instances, select cases requiring subspecialty care or techniques (e.g., endovascu­lar stent grafts) may be referred to subspecialty vascular or trauma centers. By its very nature and urgency, a good deal of trauma is dealt with by general surgeons, or even general practitioners in regional or district hospitals.
There is a thriving private health sector, which inevitably spends considerably more of the national health dollar per patient than the state sector. In general, private facilities are better equipped and staffed; and many centers are capa­ble of advanced surgery (e.g., stereotactic neurosurgery,
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cardiac and lung transplantation). Diagnostic imaging is usually far superior and more accessible at these pri­vate facilities, as is endovascular and minimally invasive surgery. A substantial proportion of the population (up to one-third) are covered by private health insurance, by a gasoline tax if the victim is injured in an automobile accident, and by a workman’s compensation insurance scheme. Thus, a signicant amount of trauma will be dealt with by the private sector; and, indeed, the rst two level I trauma centers accredited by the Trauma Society of South Africa were fully privately funded.
Much rural surgery, both basic surgery and obstetric sur­gery, is performed by general practitioners. Although there is a mix of public and private facilities across the country, the reality is that most trauma, particularly outside the major city centers, is dealt with in the public sector hospi­tals by government-employed doctors or “Medical Ofcers,” many of whom are quite junior and lack senior backup, adequate infrastructure, and may have neither appropriate training nor adequate supervision.
As with many other developing countries, prehospital care in the major cities is good in parts, with a combina­tion of public and private ambulance services, paramedics, linked road and air ambulances, and an integrated system of care. However, in the rural areas, the level of training is often poor, the vehicles are ill equipped, and the distances long, resulting in interhospital transport times of up to 8 hours. Like Australia, many parts of the country are served by a rural ying doctor service, though sometimes during daylight hours only.
Techniques of Care
There is considerable emphasis on short courses to upgrade trauma care and the recognition of vascular injury. The Advanced Trauma Life Support program (ATLS) of the American College of Surgeons has been in place since 1978. In addition to the specialist fellowships such as surgery (usually 5 years), and subspecialty fellow­ships such as vascular surgery, and trauma surgery with trauma critical care (usually 2 years further), the College of Medicine of South Africa also offers a 2-year Higher Surgical Diploma to provide extra preparation and sup­port for rural general practitioners involved in basic gen­eral surgery, including life-saving surgery such as damage control surgery.
The Denitive Surgical Trauma Care (DSTC) Course of the International Association for Trauma Surgery and Intensive Care (IATSIC) has been very popular, with some 1000 surgeons and surgical medical ofcers now trained in advanced emergency surgical life- and limb-saving tech­niques, including damage control, vascular shunting, and basic vascular repair.
The technique of resuscitative endovascular balloon occlusion of the aorta (REBOA) is in some use, though the cost is prohibitive within the state sector. As a result, the technique still must nd a dened place in South Africa, as to date, it is primarily used in the tertiary hospitals to “buy time” in Obstetrics and Gynecology, and some penetrat­ing trauma. The technique is not used in the prehospital environment.
7
6
Fig. 35.4 Patient with a stab wound of the neck showing the use of the Foley catheter for tamponade.
MANAGEMENT OF ACUTE VASCULAR HEMORRHAGE
There is emphasis on arresting hemorrhage with con­ventional techniques and sometimes with tamponade, using adjuncts such as the Foley catheter.8 This technique has proven useful, especially in stab wounds of zone I of the neck, allowing transfer to a more appropriate center (Fig. 35.4).
The surgical tourniquet (perhaps because South Africa does not have the recent combat experience of the Middle East and Afghanistan) is not in frequent use. The penetrat­ing wounds are generally low-energy gunshot wounds or stab wounds, and almost all can be controlled by direct pres­sure or using a blood pressure cuff.
MANAGEMENT OF ACUTE ISCHEMIA
Failure to recognize acute ischemia, especially in blunt injuries, remains a challenge, and limb ablation as a result of delays in both recognition and patient transfer remains a real issue. Rehabilitation facilities in the state sector are often rudimentary.
Region-Specific Considerations for Diagnosis
Many of the same considerations referred to previously in training and care delivery also apply to diagnostic imaging. In major urban hospitals, the computer tomography angio­gram (CTA) is usually the diagnostic method of choice, often associated with simplex or duplex Doppler imaging. Mag­netic resonance angiography (MRA) is generally available as well. Interventional angiography is less readily available. The technique of emergency room angiography, although well-described, is practiced by very few centers.
The use of the low-dose digital x-ray unit (Lodox; www.
lodox.com, Fig. 35.5), a South African-developed unit
originally created for detection of swallowed diamonds in the mining industry, is very fast and effective (Fig. 35.6).10 The Lodox can produce a high-quality digital whole-body
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Fig. 35.5 Photograh of the Lodox unit.
Fig. 35.6 A Lodox whole-body scan showing an impalement injury.
x-ray in as little as 13 seconds, at an ultralow-radiation dose. Its use has halved total resuscitation times, and at our center, is installed in the resuscitation unit room itself, so that all x-rays are complete within 120 seconds of arrival, and no further x-rays are routinely required.
Particularly with the use of the Lodox unit, emergency room angiography using a contrast dose of as little as 20 mL over the same period allows high-quality limb angiograms (Fig. 35.7).
However, in the rural areas, even 24-hour general x-rays or hand-held Doppler units are not readily available, and there­fore diagnosis is primarily clinical with transfer to the nearest appropriate center. These transfers are frequently associated with delays and subsequent limb loss. Rehabilitation facilities are few and far between, and, although available at a very advanced level to the mining and private sector, they are not commonly available to the vast majority of patients.
Region-Specific Treatment Strategies
Fig. 35.7 Photograph showing a limb arteriogram performed on the Lodox.
Commercially available self-expanding stent graft is a logi­cal choice where there is incomplete arterial disruption and separation, and where the angiographic capabilities and endovascular grafts are available.
NECK
Management of penetrating wounds of the neck has favored selective conservatism in Johannesburg for at least two decades, although one incentive for pursuit of a nonopera­tive policy is the heavy trauma load presenting in our hospi­tals, together with comparatively limited resources. This is a two-edged sword, as the number of operating rooms avail­able is often outstripped by demands on them, and the origin of the selective nonoperative policy was that several patients became asymptomatic and recovered while awaiting surgery! Of those patients observed with penetrating neck wounds, 6% to 9% had delayed surgery within 24 hours for missed injuries, usually esophageal or laryngeal injuries. Duplex Doppler is used to follow-up minor carotid injuries, identi­ed angiographically, that are not operated on. It is gener­ally agreed that surgical intervention should be reserved for unstable patients with zone I and zone III injuries, patients with ongoing bleeding, and patients requiring exploration for other injuries. With other cases they are treated noninva­sively or with endovascular techniques.
11,12
The treatment of vascular injuries follows the same tech­niques, using the same equipment, as in most Western countries, including primary repair, vein patching, and interposition grafts using either vein or synthetic graft.
CERVICOMEDIASTINAL INJURIES
Cervicomediastinal venous trauma can be very difcult to control.
13–15
In a series of 49 patients, 45% of whom